
EPAC: BLAS - Post-Tropical
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- cycloneye
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Re: EPAC: INVEST 94E
HWRF joins the bullish chorus of models.


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Re: EPAC: INVEST 94E
Code: Select all
* EAST PACIFIC SHIPS INTENSITY FORECAST *
* IR SAT DATA AVAILABLE, OHC AVAILABLE *
* INVEST EP942016 07/01/16 18 UTC *
TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120
V (KT) NO LAND 20 21 24 27 32 43 54 65 74 80 87 91 94
V (KT) LAND 20 21 24 27 32 43 54 65 74 80 87 91 94
V (KT) LGEM 20 20 21 22 23 27 33 40 47 56 66 78 89
Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP
SHEAR (KT) 13 11 11 10 14 14 14 12 12 11 18 16 15
SHEAR ADJ (KT) -2 -3 -7 -5 -5 -6 -4 0 -1 1 -2 -3 -1
SHEAR DIR 105 91 68 68 73 81 81 71 49 62 67 63 64
SST (C) 29.8 29.9 29.9 29.9 29.8 29.8 29.7 29.4 28.7 29.0 29.1 29.5 28.8
POT. INT. (KT) 161 162 162 163 162 162 162 159 153 156 157 159 153
200 MB T (C) -53.2 -52.9 -53.0 -53.1 -52.9 -52.8 -52.7 -52.8 -52.8 -52.8 -52.6 -52.3 -52.2
200 MB VXT (C) -0.1 -0.2 -0.2 -0.2 -0.3 -0.2 -0.3 -0.1 0.0 0.3 0.4 0.4 0.5
TH_E DEV (C) 6 6 7 7 7 8 8 8 7 8 7 7 6
700-500 MB RH 83 82 82 80 77 74 70 68 69 70 64 59 59
MODEL VTX (KT) 8 9 10 10 11 12 13 15 18 21 24 28 33
850 MB ENV VOR 5 -3 -11 -18 -19 -18 -19 -25 -18 -12 6 10 17
200 MB DIV 33 39 39 37 49 63 46 25 39 61 76 68 52
700-850 TADV 0 0 -3 -3 -2 0 1 0 -3 -2 -4 -6 -5
LAND (KM) 923 907 893 888 905 939 1005 1096 1248 1359 1567 1721 1770
LAT (DEG N) 9.9 10.2 10.5 10.8 11.0 11.4 11.7 12.0 12.4 12.7 12.5 12.2 12.9
LONG(DEG W) 104.9 105.3 105.8 106.4 107.1 108.4 110.0 111.8 114.2 117.1 120.0 121.8 123.5
STM SPEED (KT) 5 5 6 7 7 6 9 10 13 15 12 7 10
HEAT CONTENT 32 37 40 43 41 34 38 35 23 38 38 34 39
FORECAST TRACK FROM TABM INITIAL HEADING/SPEED (DEG/KT):295/ 5 CX,CY: -4/ 2
T-12 MAX WIND: 20 PRESSURE OF STEERING LEVEL (MB): 621 (MEAN=586)
GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 20.4 (MEAN=14.5)
% GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 47.0 (MEAN=65.0)
PRELIM RI PROB (DV .GE. 30 KT IN 24 HR): 4.0
INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE
6 12 18 24 36 48 60 72 84 96 108 120
----------------------------------------------------------
SAMPLE MEAN CHANGE 0. 0. 1. 1. 1. 1. 1. 1. 0. -1. -1. -2.
SST POTENTIAL -1. -2. -2. -1. 5. 14. 22. 29. 33. 35. 36. 37.
VERTICAL SHEAR MAG 1. 2. 2. 2. 1. 0. -1. -1. -1. -2. -1. 0.
VERTICAL SHEAR ADJ 0. 1. 1. 2. 3. 3. 3. 2. 2. 1. 1. 1.
VERTICAL SHEAR DIR 1. 2. 3. 5. 8. 11. 13. 14. 15. 17. 17. 16.
PERSISTENCE 0. 0. 0. -1. -1. -1. -1. 0. 0. 0. 0. 1.
200/250 MB TEMP. 0. 0. 0. -1. -1. -2. -4. -5. -6. -6. -6. -6.
THETA_E EXCESS 0. 0. 0. 0. 0. 1. 1. 2. 2. 2. 3. 2.
700-500 MB RH 0. 0. 1. 1. 2. 2. 2. 3. 3. 3. 3. 3.
MODEL VTX TENDENCY 0. 1. 1. 2. 4. 6. 10. 13. 17. 20. 23. 26.
850 MB ENV VORTICITY 0. 0. 0. 0. 0. 1. 1. 1. 2. 2. 2. 2.
200 MB DIVERGENCE 0. 0. 0. 0. 1. 1. 0. 0. 0. 1. 1. 1.
850-700 T ADVEC 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
ZONAL STORM MOTION 0. 0. 0. -1. -1. -1. -2. -1. -1. -1. -1. -1.
STEERING LEVEL PRES 0. 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 1.
DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 0. 0. -1. -1. -2. -2. -2.
GOES PREDICTORS 0. 0. 0. 0. -1. -2. -4. -4. -5. -5. -6. -6.
OCEAN HEAT CONTENT 0. 0. 1. 1. 1. 1. 1. 1. 1. 0. 0. 0.
----------------------------------------------------------
TOTAL CHANGE 1. 4. 7. 12. 23. 35. 45. 54. 60. 67. 71. 74.
CURRENT MAX WIND (KT): 20. LAT, LON: 9.9 104.9
** 2015 E. Pacific RI INDEX EP942016 INVEST 07/01/16 18 UTC **
(SHIPS-RII PREDICTOR TABLE for 30 KT OR MOREMAXIMUM WIND INCREASE IN NEXT 24-h)
Predictor Value RI Predictor Range Scaled Value(0-1) % Contribution
12 HR PERSISTENCE (KT): 0.0 -22.0 to 38.5 0.36 999.0
POT = MPI-VMAX (KT) : 142.0 40.3 to 144.5 0.98 999.0
HEAT CONTENT (KJ/cm2) : 38.6 0.0 to 75.9 0.51 999.0
STD DEV OF IR BR TEMP : 20.4 38.9 to 2.1 0.50 999.0
850-200 MB SHEAR (KT) : 11.8 18.9 to 1.4 0.41 999.0
MAXIMUM WIND (kt) : 20.0 22.5 to 132.0 0.00 0.0
D200 (10**7s-1) : 39.4 -11.0 to 135.3 0.34 999.0
BL DRY-AIR FLUX (w/m2): 16.8 638.0 to -68.2 0.88 999.0
2nd PC OF IR BR TEMP : 0.1 2.1 to -1.7 0.52 999.0
% AREA WITH TPW <45 mm: 0.0 81.4 to 0.0 1.00 999.0
SHIPS Prob RI for 20kt/ 12hr RI threshold= 0% is 0.0 times sample mean ( 6.3%)
SHIPS Prob RI for 25kt/ 24hr RI threshold= 0% is 0.0 times sample mean (12.9%)
SHIPS Prob RI for 30kt/ 24hr RI threshold= 0% is 0.0 times sample mean ( 8.6%)
SHIPS Prob RI for 35kt/ 24hr RI threshold= 0% is 0.0 times sample mean ( 5.8%)
SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times sample mean ( 4.1%)
SHIPS Prob RI for 45kt/ 36hr RI threshold= 0% is 0.0 times sample mean ( 7.1%)
SHIPS Prob RI for 55kt/ 48hr RI threshold= 0% is 0.0 times sample mean ( 5.9%)
Matrix of RI probabilities
---------------------------------------------------------------------
RI (kt / h) | 20/12 | 25/24 | 30/24 | 35/24 | 40/24 | 45/36 | 55/48
---------------------------------------------------------------------
SHIPS-RII: 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
Logistic: 2.1% 11.5% 7.9% 1.8% 0.8% 9.3% 4.4%
Bayesian: 0.0% 6.0% 3.1% 0.4% 0.1% 0.2% 0.2%
Consensus: 0.7% 5.9% 3.6% 0.7% 0.3% 3.2% 1.5%
## ANNULAR HURRICANE INDEX (AHI) EP942016 INVEST 07/01/16 18 UTC ##
## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=3 NFAIL=4 ##
## AHI= 0 (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##
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- Yellow Evan
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Re: EPAC: INVEST 94E
Great upper level outflow both from the north and south, although convection has decreased markedly due to dry air, not just D Min.
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- cycloneye
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Re: EPAC: INVEST 94E
Here the first HWRF run.


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- weathaguyry
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Re: EPAC: INVEST 94E
What a difference between the 12z and 18z runs!
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My posts are only my opinions and NOT official forecasts. For official forecasts, consult the National Hurricane Center or the National Weather Service.
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Irene 11', Sandy 12', Fay 20’, Isaias 20’, Elsa 21’, Henri 21’, Ida 21’
Re: EPAC: INVEST 94E
weathaguyry wrote:What a difference between the 12z and 18z runs!
That's 12z, 18z hasn't run yet.
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Re: EPAC: INVEST 94E
MU flipping from just south of Hawaii to recurving 2000 miles east of the islands
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- Yellow Evan
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Re: EPAC: INVEST 94E
Alyono wrote:MU flipping from just south of Hawaii to recurving 2000 miles east of the islands
Has it getting picked up by a trough.
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- cycloneye
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Re: EPAC: INVEST 94E
A broad area of low pressure located about 500 miles southwest of
Acapulco, Mexico, is producing disorganized showers and
thunderstorms. Slow development is expected tonight and on
Saturday, but environmental conditions are forecast to be conducive
for a tropical depression to form early next week while the system
moves west-northwestward at 10 to 15 mph, remaining well offshore of
the coast of Mexico.
* Formation chance through 48 hours...medium...40 percent
* Formation chance through 5 days...high...80 percent
Acapulco, Mexico, is producing disorganized showers and
thunderstorms. Slow development is expected tonight and on
Saturday, but environmental conditions are forecast to be conducive
for a tropical depression to form early next week while the system
moves west-northwestward at 10 to 15 mph, remaining well offshore of
the coast of Mexico.
* Formation chance through 48 hours...medium...40 percent
* Formation chance through 5 days...high...80 percent
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- Yellow Evan
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Re: EPAC: INVEST 94E
CMISS wind shear maps show some moderate shear at least slowing development for the next day or so, but nevertheless, I still expect a potent hurricane out of this.
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- cycloneye
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Re: EPAC: INVEST 94E
00z Best Track:
Location: 10.1°N 105.4°W
Maximum Winds: 25 kt Gusts: N/A
Minimum Central Pressure: 1008 mb
Environmental Pressure: 1010 mb
Radius of Circulation: 200 NM
Radius of Maximum Wind: 80 NM
Models continue very bullish.

Location: 10.1°N 105.4°W
Maximum Winds: 25 kt Gusts: N/A
Minimum Central Pressure: 1008 mb
Environmental Pressure: 1010 mb
Radius of Circulation: 200 NM
Radius of Maximum Wind: 80 NM
Models continue very bullish.

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Re: EPAC: INVEST 94E
Code: Select all
* EAST PACIFIC SHIPS INTENSITY FORECAST *
* IR SAT DATA AVAILABLE, OHC AVAILABLE *
* INVEST EP942016 07/02/16 00 UTC *
TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120
V (KT) NO LAND 25 29 33 38 44 58 72 83 93 100 107 110 107
V (KT) LAND 25 29 33 38 44 58 72 83 93 100 107 110 107
V (KT) LGEM 25 28 30 34 37 47 59 72 84 95 105 109 103
Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP
SHEAR (KT) 13 11 10 9 12 12 11 8 11 11 16 13 11
SHEAR ADJ (KT) -5 -6 -6 -5 -7 -8 -1 0 -1 -1 0 6 0
SHEAR DIR 101 80 78 72 68 82 80 63 73 70 64 72 49
SST (C) 29.9 29.9 29.8 29.8 29.8 29.8 29.7 29.0 28.6 28.9 29.3 28.8 27.0
POT. INT. (KT) 162 162 162 162 161 161 162 156 153 155 156 154 137
200 MB T (C) -52.9 -53.0 -53.1 -52.8 -52.5 -52.9 -52.1 -52.8 -51.9 -52.1 -51.5 -52.0 -51.1
200 MB VXT (C) -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 0.0 0.2 0.3 0.5 0.6 0.5
TH_E DEV (C) 7 7 7 7 7 7 8 8 7 7 7 6 5
700-500 MB RH 80 81 80 77 75 74 70 71 73 69 65 65 65
MODEL VTX (KT) 10 10 11 12 13 15 18 20 24 29 34 38 40
850 MB ENV VOR -1 -10 -16 -13 -16 -14 -12 -10 7 24 36 44 58
200 MB DIV 41 42 35 44 65 62 46 30 72 83 104 72 48
700-850 TADV -1 -4 -2 0 0 0 0 0 -3 -3 -3 -2 -3
LAND (KM) 921 908 913 929 957 988 1014 1093 1229 1442 1611 1577 1638
LAT (DEG N) 10.1 10.4 10.6 10.8 10.9 11.2 11.8 12.6 13.2 12.9 12.4 13.5 15.3
LONG(DEG W) 105.4 105.9 106.5 107.2 107.9 108.9 110.3 112.4 115.6 118.7 120.5 121.4 124.3
STM SPEED (KT) 5 6 7 7 6 6 10 14 16 14 5 12 19
HEAT CONTENT 37 40 42 40 37 35 39 28 25 47 34 22 20
FORECAST TRACK FROM TABM INITIAL HEADING/SPEED (DEG/KT):300/ 5 CX,CY: -3/ 3
T-12 MAX WIND: 20 PRESSURE OF STEERING LEVEL (MB): 604 (MEAN=586)
GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 14.9 (MEAN=14.5)
% GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 78.0 (MEAN=65.0)
PRELIM RI PROB (DV .GE. 30 KT IN 24 HR): 14.8
INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE
6 12 18 24 36 48 60 72 84 96 108 120
----------------------------------------------------------
SAMPLE MEAN CHANGE 0. 0. 1. 1. 1. 1. 1. 1. 0. -1. -1. -2.
SST POTENTIAL 0. -1. -1. 0. 6. 13. 21. 27. 30. 32. 33. 33.
VERTICAL SHEAR MAG 1. 1. 2. 2. 2. 1. 2. 1. 1. 1. 1. 3.
VERTICAL SHEAR ADJ 0. 1. 2. 2. 4. 4. 3. 2. 2. 1. 1. 1.
VERTICAL SHEAR DIR 1. 2. 3. 5. 8. 11. 13. 15. 16. 17. 17. 16.
PERSISTENCE 1. 1. 2. 2. 2. 2. 2. 1. 1. 1. 1. 0.
200/250 MB TEMP. 0. 0. 0. 0. -1. -2. -4. -5. -6. -6. -5. -6.
THETA_E EXCESS 0. 0. 0. 0. 1. 1. 1. 2. 2. 2. 2. 2.
700-500 MB RH 0. 0. 1. 1. 1. 2. 2. 3. 3. 3. 3. 3.
MODEL VTX TENDENCY 0. 1. 1. 3. 6. 10. 14. 20. 25. 31. 34. 33.
850 MB ENV VORTICITY 0. 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 1.
200 MB DIVERGENCE 0. 0. 0. 0. 1. 1. 1. 1. 2. 2. 2. 2.
850-700 T ADVEC 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
ZONAL STORM MOTION 0. 0. -1. -1. -1. -2. -2. -2. -1. -1. -1. -1.
STEERING LEVEL PRES 0. 0. 0. 0. 0. 0. 0. 0. 1. 1. 1. 1.
DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 0. 0. -1. -1. -1. -2. -2.
GOES PREDICTORS 1. 2. 2. 3. 3. 2. 1. 0. 0. -1. -2. -2.
OCEAN HEAT CONTENT 0. 0. 1. 1. 1. 1. 1. 1. 1. 0. 0. 0.
----------------------------------------------------------
TOTAL CHANGE 4. 8. 13. 19. 33. 47. 58. 68. 75. 82. 85. 82.
CURRENT MAX WIND (KT): 25. LAT, LON: 10.1 105.4
** 2015 E. Pacific RI INDEX EP942016 INVEST 07/02/16 00 UTC **
(SHIPS-RII PREDICTOR TABLE for 30 KT OR MOREMAXIMUM WIND INCREASE IN NEXT 24-h)
Predictor Value RI Predictor Range Scaled Value(0-1) % Contribution
12 HR PERSISTENCE (KT): 5.0 -22.0 to 38.5 0.45 3.6
POT = MPI-VMAX (KT) : 136.8 40.3 to 144.5 0.93 5.3
HEAT CONTENT (KJ/cm2) : 39.2 0.0 to 75.9 0.52 3.7
STD DEV OF IR BR TEMP : 14.9 38.9 to 2.1 0.65 4.4
850-200 MB SHEAR (KT) : 11.0 18.9 to 1.4 0.45 2.8
MAXIMUM WIND (kt) : 25.0 22.5 to 132.0 0.07 0.4
D200 (10**7s-1) : 45.4 -11.0 to 135.3 0.39 1.2
BL DRY-AIR FLUX (w/m2): 37.0 638.0 to -68.2 0.85 0.0
2nd PC OF IR BR TEMP : 0.6 2.1 to -1.7 0.39 -0.5
% AREA WITH TPW <45 mm: 0.0 81.4 to 0.0 1.00 0.7
SHIPS Prob RI for 20kt/ 12hr RI threshold= 0% is 0.0 times sample mean ( 6.3%)
SHIPS Prob RI for 25kt/ 24hr RI threshold= 31% is 2.4 times sample mean (12.9%)
SHIPS Prob RI for 30kt/ 24hr RI threshold= 22% is 2.5 times sample mean ( 8.6%)
SHIPS Prob RI for 35kt/ 24hr RI threshold= 0% is 0.0 times sample mean ( 5.8%)
SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times sample mean ( 4.1%)
SHIPS Prob RI for 45kt/ 36hr RI threshold= 0% is 0.0 times sample mean ( 7.1%)
SHIPS Prob RI for 55kt/ 48hr RI threshold= 0% is 0.0 times sample mean ( 5.9%)
Matrix of RI probabilities
---------------------------------------------------------------------
RI (kt / h) | 20/12 | 25/24 | 30/24 | 35/24 | 40/24 | 45/36 | 55/48
---------------------------------------------------------------------
SHIPS-RII: 0.0% 30.9% 21.8% 0.0% 0.0% 0.0% 0.0%
Logistic: 6.6% 33.6% 23.7% 9.5% 5.1% 29.1% 32.8%
Bayesian: 0.4% 30.6% 18.5% 3.5% 1.5% 6.5% 15.8%
Consensus: 2.3% 31.7% 21.3% 4.3% 2.2% 11.9% 16.2%
## ANNULAR HURRICANE INDEX (AHI) EP942016 INVEST 07/02/16 00 UTC ##
## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=3 NFAIL=4 ##
## AHI= 0 (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##
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- Kingarabian
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- 1900hurricane
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Re: EPAC: INVEST 94E
Looks like a broad circulation has begun to coalesce with 94E. Dry air doesn't look to be much of a factor at the moment either.


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Re: EPAC: INVEST 94E
classic monsoon trough genesis. Broad and slow, but once it consolidates, rapid intensification seems likely
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- cycloneye
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Re: EPAC: INVEST 94E
From the 4:05 UTC discussion.
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Sat Jul 02 2016
A 1008 mb low pres is analyzed along the monsoon trough at
10N105.5W. Moderate winds are observed within 270 nm over the n
semicircle of the low, while moderate to fresh southwesterly
flow is observed within about 360 nm s of the low. Currently
scattered moderate isolated strong convection is observed sw of
the low center, within 90 nm either side of a line from 08N104W
to 13N110W. Similar convection is noted ne of the low, within 45
nm either side of a line from 11N103W to 14N107W. This low is
forecast to move wnw to near 12.5N106.5W late Sat, and near
13N110.5W late Sun. Environmental conditions are becoming
favorable for tropical cyclone development.
NWS National Hurricane Center Miami FL
0405 UTC Sat Jul 02 2016
A 1008 mb low pres is analyzed along the monsoon trough at
10N105.5W. Moderate winds are observed within 270 nm over the n
semicircle of the low, while moderate to fresh southwesterly
flow is observed within about 360 nm s of the low. Currently
scattered moderate isolated strong convection is observed sw of
the low center, within 90 nm either side of a line from 08N104W
to 13N110W. Similar convection is noted ne of the low, within 45
nm either side of a line from 11N103W to 14N107W. This low is
forecast to move wnw to near 12.5N106.5W late Sat, and near
13N110.5W late Sun. Environmental conditions are becoming
favorable for tropical cyclone development.
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